using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using System;


public class NewButton : Button
{
    public bool m_IsOn;

    private bool isPointerInside;
    public bool m_IsPointerInside { get => isPointerInside; protected set => isPointerInside = value; }

    private bool findText = false;
    private Text text;
    /// <summary>
    /// 按钮文本
    /// </summary>
    public Text m_Text
    {
        get
        {
            if (!findText && text == null)
            {
                findText = true;
                text = GetComponentInChildren<Text>(true);
            }
            return text;
        }
        protected set => text = value;
    }
    public class Click : UnityEvent<bool> { }

    public Click m_onClick = new Click();

    /// <summary>
    /// 是否按住
    /// </summary>
    public bool m_boolPressHold;

    public Action m_actionPressHold;

    protected override void Awake()
    {
        base.Awake();
        onClick.AddListener(OnClick);
    }

    void Update()
    {
        if (m_boolPressHold)
        {
            m_actionPressHold?.Invoke();
        }
    }

    /// <summary>
    /// 点击事件
    /// </summary>
    private void OnClick()
    {
        m_IsOn = !m_IsOn;
        m_onClick?.Invoke(m_IsOn);
    }

    /// <summary>
    /// 同步文本内容 编辑器执行
    /// </summary>
    public void SyncText()
    {
        if (m_Text == null)
            m_Text = GetComponentInChildren<Text>();
        if (m_Text != null)
            m_Text.text = name;
    }

    protected override void OnDisable()
    {
        base.OnDisable();
        isPointerInside = false;
    }

    public override void OnPointerEnter(PointerEventData eventData)
    {
        base.OnPointerEnter(eventData);
        isPointerInside = true;
    }

    public override void OnPointerExit(PointerEventData eventData)
    {
        base.OnPointerExit(eventData);
        isPointerInside = false;
    }

    public override void OnPointerDown(PointerEventData eventData)
    {
        base.OnPointerDown(eventData);
        m_boolPressHold = true;
    }

    public override void OnPointerUp(PointerEventData eventData)
    {
        base.OnPointerUp(eventData);
        m_boolPressHold = false;
    }
}